[U-Boot] TFTP timeouts, i.mx fec problem?

[Ruud Commandeur]

Hi Wolfgang,

Interesting thought. Never looked at it from this site, but this can be true of course. Although somewhat harder to proof, I'm afraid. I will keep this in mind for any further testing I will do.

Regards,

Ruud

> -----Oorspronkelijk bericht-----
> Van: Wolfgang Denk [mailto:wd at denx.de] 
> Verzonden: vrijdag 14 juni 2013 17:31
> Aan: Ruud Commandeur
> CC: Eric Bénard; Marek Vašut; U-Boot list
> Onderwerp: Re: [U-Boot] TFTP timeouts, i.mx fec problem?
> 
> Dear Ruud,
> 
> In message 
> <15AE5A936F5E3A42A9144E66875A0A89309217 at server1-derijp.CLB-Ben
elux.lokaal> you wrote:
> > 
> > I noticed these pins on the board. They have optional pull-down
> > resistors, which are not placed by default. This would result in
> > mode[2:0] being 111: "All capable. Auto-negotiation enabled". And as
> > I look at the code, the cofiguration bits are set quite identical to
> > this mode (10 + 100, Both FULL + HALF, aneg enabled). And on the
> > other hand: after this sw-config + reset, the autonegotiation itself
> > succeeds, indicated by the status bits and LED's. But for 
> some reason
> > it is not ready to transmit yet...
> 
> Hm... autonegotiation does not happen on the board only, it is
> something between the board an the switch.  Would it be possible that
> the switch takes longer to become ready to receive than the target
> board takes to become ready to send?
> 
> Best regards,
> 
> Wolfgang Denk
> 
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